<div id="menus">
<button id="btn1">A button element</button>
<button id="btn2">A button element</button>
<button id="btn3">A button element</button>
<button id="btn4">A button element</button>
</div>
    <!-- Select Tabs -->
    <div id="tabs">
        <ul>
             <li><a href="#tabs-1">Source</a></li>
             <li><a href="#tabs-2">Country</a></li>
             <li><a href="#tabs-3">Third</a></li>
        </ul>
        <div id="tabs-1">
             <label for="sourceCode">Source : </label>
             <select id="sourceCode"><option value=""></option></select>
             <label for="indicatorCode">Indicator : </label>
             <select id="indicatorCode"><option value=""></option></select>
        </div>
        <div id="tabs-2">
             <label for="countryCode">Country : </label>
             <select id="countryCode"></select>
        </div>
        <div id="tabs-3">
            <fieldset>
                <label for="yearTo">To:</label>
                <select name="yearTo" id="yearTo"></select>
                <label for="yearFrom">From:</label>
                <select name="yearFrom" id="yearFrom"></select>
            </fieldset>
        </div>
    </div>
